CN210488977U - Device for demonstrating buoyancy experiment by using intelligent sensor - Google Patents

Abstract

The utility model discloses an utilize device of intelligent sensor demonstration buoyancy experiment, the device includes transparent outer box, the upper end of transparent outer box is equipped with the opening, the back of transparent outer box is equipped with trompil A, the inside of transparent outer box is fixed and is equipped with interior box; the back of the inner box is provided with an opening B, the inner box is provided with a plurality of small round holes, and pressure demonstration structures penetrate through the small round holes; the pressure demonstration structure comprises a funnel, a hose and a pressure measuring instrument, the funnel comprises a hopper body and a pipe body, the hopper body is fixedly connected with the pipe body, the hopper body is positioned outside the inner box, and a thin film is attached to an opening of the hopper body; the hose is movably connected with the other end, far away from the bucket body, of the pipe body, the hose sequentially penetrates through the opening B and the opening A, and the other end, far away from the pipe body, of the hose is movably connected with the pressure measuring instrument. The utility model discloses the reason that buoyancy produced and the relation of buoyancy and object immersion liquid volume.

Description

Device for demonstrating buoyancy experiment by using intelligent sensor

Technical Field

The utility model relates to an intelligence experiment apparatus field specifically is an utilize device of intelligent sensor demonstration buoyancy experiment.

Background

Buoyancy refers to the force of the liquid or gas vertically upwards supported by the object immersed in the liquid or gas, and is generated by the pressure difference of the liquid or gas upwards and downwards on the object.

In course teaching, the buoyancy phenomenon is the key content of a physical course, and the reason for generating the liquid buoyancy and the factors influencing the buoyancy are difficult points of teaching all the time. The buoyancy is only related to the volume of the liquid physically discharged and the density of the liquid, but not to the depth of the object; when the density of the liquid is unchanged, the larger the volume of the liquid discharged by the object is, the larger the buoyancy is; when the volume of the liquid discharged by the object is unchanged, the higher the density of the liquid is, the larger the buoyancy is; the greater the product of the density of the liquid and the volume of liquid displaced, the greater the buoyancy.

At present, buoyancy experiment demonstration almost has no complete set of experiment teaching aids, and a method generally used by teachers is to put table tennis balls into a water tank so that students feel that the acting force of the table tennis balls on hands is different when the students feel that the table tennis balls are located at different liquid depths; and if the two ends of the straight cylinder are attached with rubber films, the depth and pressure intensity of different liquids are qualitatively judged to be inconsistent by observing the inward concave degree of the rubber films at the upper end and the lower end, and the like. The experimental instruments draw conclusions in a way of perception or observation by eyes, so that the conclusions are not strong persuasion and are not beneficial to students to observe.

Chinese patent document CN201721163381.0, application date 20170912, with patent names: the buoyancy generation reason experiment demonstration instrument comprises an instrument wall, a bottom plate and a demonstration cavity formed by the instrument wall and the bottom plate; the top of the instrument wall is arranged in an open shape; a partition plate is arranged in the demonstration cavity, the demonstration cavity is divided into an upper cavity and a lower cavity by the partition plate, a through hole is formed in the partition plate, and a floater is covered on the through hole of the partition plate; the wall of the upper chamber is provided with a water outlet, the wall of the lower chamber is provided with a water inlet, the water outlet is connected with the water inlet through a water pipe, and the water pipe is provided with a water cut-off switch.

The patent documents can lead students to observe that the floater does not float upwards when water is filled from the periphery of the floater and the bottom of the floater keeps no water; after the bottom of the floater contacts water, the floater floats upwards, so that students can clearly know the reason for generating the buoyancy. However, a device that can explain not only the cause of buoyancy but also the relationship between buoyancy and the volume of liquid in which an object is immersed has not been proposed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's not enough, provide an utilize device of intelligent sensor demonstration buoyancy experiment to reach and to explain the reason that buoyancy produced, can explain the purpose of the relation of buoyancy and object immersion liquid volume again.

The purpose of the utility model is realized through the following technical scheme: a device for demonstrating a buoyancy experiment by using an intelligent sensor comprises a transparent outer box, wherein an opening is formed in the upper end of the transparent outer box, a hole A is formed in the back of the transparent outer box, and an inner box is fixedly arranged inside the transparent outer box; the back of the inner box is tightly attached to the inner surface of the transparent outer box, the back of the inner box is provided with a hole B, and the hole B covers the hole A; the inner box is provided with a plurality of small round holes, and pressure demonstration structures penetrate through the small round holes; the pressure demonstration structure comprises a funnel, a hose and a pressure measuring instrument, the funnel comprises a hopper body and a pipe body, the hopper body is fixedly connected with the pipe body, the hopper body is positioned outside the inner box, a thin film is attached to an opening of the hopper body, and the outer side wall of the pipe body is tightly attached to the edge of the small circular hole; the hose is movably connected with the other end, far away from the bucket body, of the pipe body, the hose sequentially penetrates through the opening B and the opening A, and the other end, far away from the pipe body, of the hose is movably connected with the pressure measuring instrument.

The device still includes crossbeam, intelligent force sensor, couple and the piece of weighing, the crossbeam erects directly over transparent outer box, the middle fixed intelligent force sensor that is equipped with of crossbeam, intelligent force sensor's lower extreme with couple fixed connection, the piece of weighing is hung and is established on the couple.

Through the technical scheme, the pressure demonstration structure can clearly show the whole process of pressure generation, so that the effect of enabling the demonstration process to be more visual is achieved; in addition, the pressure measuring instrument is added, so that the phenomenon of pressure increase or pressure decrease can be clearly observed, the phenomenon of an amplification experiment is achieved, and the demonstration is more definite. Finally, the beam, the intelligent force sensor, the hook and the weighing piece are added, so that the effect of researching the relation between the buoyancy force borne by the object and the volume of the liquid immersed in the object is achieved; when the weighing piece is researched, the volume of the object immersed in the liquid and the force applied to the object can be collected and recorded in real time, a relation curve between the buoyancy applied to the weighing piece and the volume of the immersed liquid is made, and the effect of deducing a conclusion according to data is achieved, so that the mastering degree is improved.

Preferably, the weighing member includes, but is not limited to, a weight, and a cylinder.

Preferably, the device further comprises a plurality of supports, each support comprises a fixed end and a U-shaped hook, the fixed ends are fixedly connected with the pressure measuring instrument, and the hooks are hung on the edge of the transparent outer box.

Through the technical scheme, the support is used for suspending the pressure measuring instrument at the edge of the transparent outer box, so that the effect of improving the convenience of observation is achieved.

Preferably, the inner case has a cubic shape.

Preferably, the upper surface, the lower surface, the left surface and the right surface of the inner box are respectively provided with 1 small round hole in the central part, and the number of the pressure demonstration structures is 4.

Through the technical scheme, the central parts of the upper, lower, left and right surfaces of the inner box are respectively provided with 1 small round hole, when the transparent outer box is filled with water, the left and right funnels with films are horizontally arranged, so that the readings of the two connected pressure measuring instruments are the same; however, the depths of the upper funnel and the lower funnel which are provided with rubber films are different because of different immersion depths of liquid, so that the effect of showing the reasons of buoyancy by using data is achieved.

Preferably, 4 pressure measuring instruments are bonded in pairs.

Through the technical scheme, the pressure measuring instruments are bonded in pairs, so that the effect of improving the convenience of installation and comparative observation is achieved.

Preferably, a water valve is arranged at the bottom end of the side surface of the transparent outer box.

Through the technical scheme, the water valve is added, so that the height of the liquid level can be conveniently adjusted, different liquid types can be conveniently replaced, and the effect of improving the convenience in use is achieved.

Preferably, the transparent outer box and the inner box are made of acrylic plates.

Preferably, the film is a rubber film.

The utility model has the advantages that:

1. the utility model discloses an utilize device of intelligent sensor demonstration buoyancy experiment, through adding the pressure demonstration structure, clearly show the whole process that pressure produced, reach and make the demonstration process more audio-visual effect; in addition, the pressure measuring instrument is added, so that the phenomenon of pressure increase or pressure decrease can be clearly observed, the phenomenon of an amplification experiment is achieved, and the demonstration is more definite.

2. The utility model discloses an utilize device of intelligent sensor demonstration buoyancy experiment has added in addition crossbeam, intelligent force transducer, couple and weighing member have reached and to have explained the reason that buoyancy produced, can explain the effect of the relation of buoyancy and object immersion liquid volume again, in addition, through inciting somebody to action intelligent force transducer is connected with the computer, can gather data and draw in real time the relation curve of the buoyancy that the weighing member receives and immersion liquid volume has reached and has derived the conclusion according to data, deepens the effect of memory and mastery degree.

3. The utility model discloses an utilize device of intelligent sensor demonstration buoyancy experiment has added the water valve not only can conveniently adjust the height of liquid level, can also conveniently change different liquid types, has reached the effect that improves the convenient degree of use.

Drawings

Fig. 1 is a front view of a device for demonstrating a buoyancy test by using an intelligent sensor according to the present invention;

FIG. 2 is a front view of the inner case of the present invention;

in the figure, 1, a cross beam; 2. an intelligent force sensor; 3. a pressure measuring instrument; 4. a support; 5. a funnel; 6. an inner case; 7. a transparent outer box; 8. a water valve; 9. a hose; 10. weighing the parts; 11. and (4) hanging hooks.

Detailed Description

The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.

Examples

As shown in fig. 1-2, a device for demonstrating buoyancy test by using an intelligent sensor comprises a transparent outer box 7 made of an acrylic plate, wherein an opening is arranged at the upper end of the transparent outer box 7; the back of the transparent outer box 7 is provided with an opening A; a cubic inner box 6 for observing the pressure and buoyancy generation process is fixedly arranged inside the transparent outer box 7; the bottom end of the side surface of the transparent outer box 7 is provided with the water valve 8, the height of the liquid level can be conveniently adjusted and different liquid types can be conveniently replaced through the water valve 8, and the effect of improving the convenience of use is achieved.

Interior box 6 adopts the preparation of acrylic plate to form, and the back of interior box 6 closely laminates with the internal surface of transparent outer box 7, and the back of interior box 6 is equipped with trompil B, and trompil B covers on trompil A to reach the effect that improves the device closure. The upper, lower, left and right faces of the inner box 6 are respectively provided with 1 small round hole at the central part, and the 4 small round holes are internally provided with pressure demonstration structures in a penetrating way, so that the purpose of simultaneously observing the pressure intensity of the same depth and different depths is realized. The pressure demonstration structure comprises a funnel 5, a hose 9 and a pressure measuring instrument 3; the funnel 5 comprises a funnel body and a pipe body, the funnel body is fixedly connected with the pipe body, and the funnel body is positioned outside the inner box 6; a rubber film is attached to the opening of the funnel body, and the generation of pressure can be directly observed through the depression of the rubber film on the funnel 5; the outer side wall of the pipe body is tightly attached to the edge of the small round hole, so that the effect of improving the sealing performance of the device is achieved; the hose 9 is sleeved with the other end of the pipe body, which is far away from the bucket body, the hose 9 sequentially penetrates through the opening B and the opening A, the other end of the hose 9, which is far away from the pipe body, is sleeved with the pressure measuring instrument 3, the experimental phenomenon can be amplified through the pressure measuring instrument 3, and the change of the pressure applied to the pressure demonstration structure can be observed more clearly; the 4 pressure measuring instruments 3 are bonded in pairs, so that the effect of improving the convenience of installation and comparison observation is achieved. The device also comprises 2 supports 4, each support 4 comprises a fixed end and a U-shaped hook 11, the fixed ends are fixedly connected with the pressure measuring instrument 3, and the hooks 11 are hung on the edge of the transparent outer box 7.

The device still includes crossbeam 1, intelligent force sensor 2, couple 11 and weighs a 10, and crossbeam 1 erects directly over transparent outer box 7, and the centre of crossbeam 1 is equipped with intelligent force sensor 2 through the fix with screw, and intelligent force sensor 2's lower extreme and couple 11 fixed connection weigh a 10 and hang and establish on couple 11, and it is the cylinder to weigh a 10. During the experiment, connect intelligent force sensor 2 with the computer, can gather and record the volume that the object immerged liquid and the power that receives it in real time, intelligent force sensor 2 adopts the power PST force transducer of koehu.

The implementation principle of the embodiment is as follows: when the reason for buoyancy is researched, water is added into the transparent outer box 7 until the inner box 6 is submerged, and at the moment, the pressure change of the water pressure demonstration structure can be observed through the pressure measuring instrument 3; at this time, it can be observed that the two pressure demonstration structures positioned at the left and right sides of the inner box 6 are in the same horizontal plane, so that the pressures are equal; the two pressure demonstration structures positioned on the upper bottom surface and the lower bottom surface are different in pressure intensity due to the fact that the two pressure demonstration structures are different in the depth of immersion liquid, and the pressure intensity of the lower bottom surface is larger than that of the upper bottom surface, so that the reason of buoyancy generation can be known.

When the relation between the buoyancy borne by an object and the volume of the object immersed in liquid is researched, the cylinder is hung on the hook 11, and meanwhile, the weight of the cylinder is recorded; immediately adding water into the transparent outer box 7 until the cylinder is completely submerged, and observing the intelligent force sensor 2 in the process, the reading can be gradually reduced; when the cylinder is completely submerged and water is continuously added, the indication number of the intelligent force sensor 2 is not changed, and therefore the relation between the buoyancy and the volume of the liquid immersed in the object can be known.

The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims (9)

1. The utility model provides an utilize device of intelligent sensor demonstration buoyancy experiment which characterized in that: the device comprises a transparent outer box (7), an opening is formed in the upper end of the transparent outer box (7), a hole A is formed in the back of the transparent outer box (7), and an inner box (6) is fixedly arranged inside the transparent outer box (7); the back of the inner box (6) is tightly attached to the inner surface of the transparent outer box (7), the back of the inner box (6) is provided with a hole B, and the hole B covers the hole A; a plurality of small round holes are formed in the inner box (6), and pressure demonstration structures penetrate through the small round holes; the pressure demonstration structure comprises a funnel (5), a hose (9) and a pressure measuring instrument (3), the funnel (5) comprises a funnel body and a pipe body, the funnel body is fixedly connected with the pipe body, the funnel body is positioned outside the inner box (6), a thin film is attached to an opening of the funnel body, and the outer side wall of the pipe body is tightly attached to the edge of the small circular hole; the hose (9) is movably connected with the other end, far away from the bucket body, of the hose body, the hose (9) sequentially penetrates through the opening B and the opening A, and the other end, far away from the hose body, of the hose (9) is movably connected with the pressure measuring instrument (3);

the device still includes crossbeam (1), intelligent force sensor (2), couple (11) and weighs (10), erect crossbeam (1) directly over transparent outer box (7), the centre of crossbeam (1) is fixed to be equipped with intelligent ability sensor (2), the lower extreme of intelligent ability sensor (2) with couple (11) fixed connection, it establishes to hang in the heavy piece (10) on couple (11).

2. The apparatus for demonstrating buoyancy test using intelligent sensor according to claim 1, wherein: the weighing piece (10) comprises but is not limited to a weight, a weight and a cylinder.

3. The apparatus for demonstrating buoyancy test using intelligent sensor according to claim 1, wherein: the device further comprises a plurality of supports (4), each support (4) comprises a fixed end and a U-shaped hook (11), the fixed ends are fixedly connected with the pressure measuring instrument (3), and the hooks (11) are hung on the edge of the transparent outer box (7).

4. The apparatus for demonstrating buoyancy test using intelligent sensor according to claim 1, wherein: the inner box (6) is cubic.

5. The apparatus for demonstrating buoyancy test using intelligent sensor according to claim 1, wherein: the upper surface, the lower surface, the left surface and the right surface of the inner box (6) are respectively provided with 1 small round hole in the central part, and the number of the pressure demonstration structures is 4.

6. The apparatus for demonstrating buoyancy test using intelligent sensor according to claim 5, wherein: the 4 pressure measuring instruments (3) are bonded in pairs.

7. The apparatus for demonstrating buoyancy test using intelligent sensor according to claim 1, wherein: a water valve (8) is arranged at the bottom end of the side surface of the transparent outer box (7).

8. The apparatus for demonstrating buoyancy test using intelligent sensor according to claim 1, wherein: the transparent outer box (7) and the inner box (6) are made of acrylic plates.

9. The apparatus for demonstrating buoyancy test using intelligent sensor according to claim 1, wherein: the film is a rubber film.

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